BLACK+DECKER 20V MAX 12 Inch Weed Eater Cordless String Trimmer and Wheeled Edger Lawn
- 12 inch cutting width
- 2 speeds: full power or longer runtime
- 2.5 Ah 20V MAX battery and charger included
- Automatic Feed Spool
- Wheeled edger mode
- 5.7 pounds
- 2 year limited warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A cordless trimmer and wheeled edger with two speeds that trade torque for runtime. The listing gives no minutes of runtime.
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ASIN: B019Z72FM4Model: LST522Category: String Trimmers
Overview
Along a driveway, around beds and across overgrown patches, the LST522 works as a string trimmer and as a wheeled edger. The Automatic Feed Spool means no bumping to advance line.
Run at full power through thick overgrowth, or slow down while edging to stretch the battery. A single battery limits long sessions.
Who it's for
Homeowners with moderate lawns who want switchable speeds on one tool. Big properties may want a stronger platform.
Pros and cons
- Two speed PowerDrive
- Automatic Feed Spool
- Wheeled edger mode
- Battery and charger included
- Runtime in minutes not listed
- One battery only
Performance notes
The higher speed gives torque for tough overgrowth, while the lower speed extends battery runtime during edging. Automatic feed advances line on demand, and the wheel guides the cut along borders.
Specifications
| Model | LST522 |
|---|---|
| Dimensions & fit | |
| Cutting width | 12 inches |
| Dimensions (L x W) | 41.33 x 9.25 inches |
| Item weight | 5.7 pounds |
| Capacity & performance | |
| Speeds | 2 (PowerDrive) |
| Power & efficiency | |
| Power source | Battery powered |
| Voltage | 20V MAX |
| Battery | 2.5 Ah lithium ion, included |
| Warranty & support | |
| Warranty | 2 year limited |
| Other details | |
| Line feed | Automatic Feed Spool |
| Modes | String trimmer, wheeled edger |
Frequently asked questions
Is the BLACK+DECKER LST522 a gas trimmer?
No. It is a battery powered trimmer and wheeled edger. The listing mentions no gas or cord.
What does the two speed control do on the LST522?
The description says to power through tough overgrowth, or reduce speed while edging for extra runtime.
Does the BLACK+DECKER LST522 include a battery and charger?
Yes. The title says a 2.5 Ah battery and charger are included.